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Round|Lab Grown|IGI

1.29ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG818644617

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818644617

Diamond specifications and retailer prices

From $412 AUD
$289 USD
As of November 1, 2026
Save $2,940 AUD (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,353 AUD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818644617 or 818644617. Listed at 24 retailers as of October 27, 2026, with prices from $412 to $3,353, a $2,940 spread on the same certified stone. Queensmith lists it at $3,353. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644617
Dimensions6.99 × 7.04 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.99 mm7.04 mm1.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644617
Side View
Table 59.0%Crown 33.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $902 AUD|Low: $412 AUD|High: $2,611 AUD|Avg: $1,098 AUD|+3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 3, 2026
Retailer 3$412 AUD
Retailer 4$461 AUD
Retailer 6$511 AUD
Retailer 5$688 AUD
Retailer 13$735 AUD
Retailer 9$811 AUD
Retailer 8$826 AUD
Retailer 10$882 AUD
Retailer 1$902 AUD
Retailer 12$1,247 AUD
Retailer 7$1,326 AUD
Retailer 2$1,941 AUD
Retailer 14$2,051 AUD
Retailer 11$2,283 AUD

34 data points across 14 retailers

24 retailers$412 AUD to $3,353 AUD

A
Cheapest Retailer
-
$412 AUD
$289 USD
A
Retailer 2
-
$461 AUD
$323 USD
View
Final sale: no returns
A
Retailer 3
-
$478 AUD
$335 USD
View
A
Retailer 4
-
$511 AUD
$358 USD
View
Retailer 5
-
$511 AUD
$358 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$566 AUD
HK$3,100 HKD
View
A
Retailer 7
-
$688 AUD
$482 USD
View
A
Retailer 8
-
$735 AUD
$515 USD
View
A
Retailer 9
-
$811 AUD
£448 GBP
View
A
Retailer 10
-
$826 AUD
€551 EUR
View
A
Retailer 11
-
$882 AUD
ZAR 9,982 ZAR
View
A
Retailer 12
-
$902 AUD
£498 GBP
View
A
Retailer 13
-
$1,152 AUD
$807 USD
View
B+
Retailer 14
-
$1,247 AUD
View
B+
Retailer 15
-
$1,326 AUD
$929 USD
View
B+
Retailer 16
-
$1,643 AUD
SGD 1,556 SGD
View
B+
Retailer 17
-
$1,644 AUD
$1,152 USD
View
B+
Retailer 18
-
$1,713 AUD
$1,201 USD
View
B+
Retailer 19
-
$1,821 AUD
$1,276 USD
View
B+
Retailer 20
-
$1,941 AUD
$1,360 USD
View
Retailer 21
-
$2,051 AUD
£1,132 GBP
View
Price last confirmed 7 days ago
B
Retailer 22
-
$2,108 AUD
$1,477 USD
View
B+
Retailer 23
-
$2,283 AUD
$1,600 USD
View
Most Expensive
B
Queensmith
LG818644617 · Oct 27
$3,353 AUD
£1,850 GBP
View
23 more retailers have this diamond
Prices start from $412 AUDSave up to $2,940 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.29ct Round
$412 AUD